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Finding the Fourth Proportional to 325,605.92, 449,350.02 and 189,617.94

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Solution

The fourth proportional to 325,605.92, 449,350.02 and 189,617.94 is: 261,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,605.92 : 449,350.02 = 189,617.94 : x
  2. Step 2: Convert to fraction form
    325,605.92/449,350.02 = 189,617.94/x
  3. Step 3: Cross multiply
    325,605.92x = 449,350.02 × 189,617.94
  4. Step 4: Simplify right side
    325,605.92x = 85,204,825,131.36
  5. Step 5: Solve for x
    x = 85,204,825,131.36/325,605.92
  6. Step 6: Final answer
    x = 261,680.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.